Sealed pressure indicator
    1.
    发明授权

    公开(公告)号:US06543294B2

    公开(公告)日:2003-04-08

    申请号:US09737924

    申请日:2000-12-15

    IPC分类号: G01L708

    摘要: A pressure indicator according to the present invention monitors the pressure of the fluid in a vessel. One embodiment of the present invention comprises a closed pressurized gas volume behind a dimpled metal diaphragm. In normal operation, the force of the fluid pressure acting on the external surface of the diaphragm overcomes the force of the gas pressure acting on the internal surface of the diaphragm to hold the diaphragm in a concave geometry. In the event of a sufficient loss of fluid pressure, the force of the gas pressure acting on the internal surface of the diaphragm will overcome the force of the fluid pressure acting on the external surface of the diaphragm, thereby moving the diaphragm into a convex geometry. A viewing window disposed in the side of the vessel can be used to view the pressure indicator and determine the shape of the indicator diaphragm.

    Vertical liquid inertia vibration isolator
    2.
    发明授权
    Vertical liquid inertia vibration isolator 有权
    垂直液体惯性隔振器

    公开(公告)号:US06431530B1

    公开(公告)日:2002-08-13

    申请号:US09577737

    申请日:2000-05-23

    IPC分类号: F16F904

    摘要: A vibration isolator (10) for isolating the vibration of two bodies that are connected together is disclosed. The vibration isolator (10) comprises an inner cylinder (16) and a pair of outer housings (12, 14) concentrically bonded together with elastomer structures (18, 20) to form two chambers (22, 26) that are joined by a tuning port (24). The elastomer structures (18, 20) may serve both as the seals for the chambers (22, 26) and the compliant spring members in the isolator (10). The isolator (10) connects to a vibrating body by a spherical bearing (28). The chambers (22, 26) and tuning port (24) are filled with an inviscid fluid (34) and pressurized to prevent cavitation. In certain embodiments, pressure within the isolator (10) is maintained by a volume compensating device (30) connected to the chambers (22, 26) via a small diameter orifice (36).

    摘要翻译: 公开了一种用于隔离连接在一起的两个体的振动的隔振器(10)。 隔振器(10)包括内筒(16)和与弹性体结构(18,20)同心地结合在一起的一对外壳体(12,14),以形成两个腔室(22,26),其通过调谐 港(24)。 弹性体结构(18,20)可以用作腔室(22,26)的密封件和隔离器(10)中的顺应弹簧构件。 隔离器(10)通过球面轴承(28)连接到振动体。 腔室(22,26)和调音口(24)填充有不粘液体(34)并被加压以防止空化。 在某些实施例中,隔离器(10)内的压力由经由小直径孔(36)连接到腔室(22,26)的体积补偿装置(30)维持。

    ARTICULATED MAIN ROTOR HUB WITH INWARDLY CF BEARING AND 3% FLAPPING HINGE OFFSET
    4.
    发明申请
    ARTICULATED MAIN ROTOR HUB WITH INWARDLY CF BEARING AND 3% FLAPPING HINGE OFFSET 有权
    具有正面CF轴承和3%折叠铰链偏心的主要主转子架

    公开(公告)号:US20150251753A1

    公开(公告)日:2015-09-10

    申请号:US14202617

    申请日:2014-03-10

    IPC分类号: B64C27/605 B64C27/51

    CPC分类号: B64C27/605 B64C27/35

    摘要: A rotary system including a grip having an opening forming a first bridge for receiving a centrifugal force bearing that faces inwardly towards the rotor mast. A rotor blade couples to the grip and a pitch horn positioned outside the opening pitches the rotor blade during flight. A bearing assembly attaches the first bridge to the yoke and controls blade forces exerted against the hub assembly during flight.

    摘要翻译: 一种旋转系统,包括具有开口的手柄,所述开口形成第一桥接件,用于接收向内朝向所述转子桅杆的离心力轴承。 转子叶片耦合到把手,并且位于开口外侧的节距角在飞行期间对转子叶片进行间距。 轴承组件将第一桥连接到轭,并控制在飞行期间施加在轮毂组件上的叶片力。

    Method of making a rotor yoke and rotor yoke thereof
    5.
    发明授权
    Method of making a rotor yoke and rotor yoke thereof 有权
    制造转子轭及其转子轭的方法

    公开(公告)号:US08419375B2

    公开(公告)日:2013-04-16

    申请号:US12864704

    申请日:2008-01-31

    IPC分类号: B64C11/14 B64C27/32

    CPC分类号: B64C27/32 B64C27/33

    摘要: A method of making a rotor yoke includes preparing a cured composite rotor yoke preform on a single-sided curing tool and machining at least one portion of the cured rotor yoke preform to form a rotor yoke. In one embodiment, preparing the cured composite rotor yoke is accomplished by applying successive layers of uncured polymeric composite material to a single-sided tool in a configuration to produce an uncured rotor yoke preform; disposing a semi-rigid caul to an untooled side of the uncured rotor yoke preform; enclosing the uncured rotor yoke preform and the semi-rigid caul by substantially hermetically sealing a vacuum bag to the tool; substantially evacuating a volume defined by the vacuum bag and the tool of air; and heating the uncured rotor yoke preform, sometimes under pressure, to form the cured composite rotor yoke preform.

    摘要翻译: 制造转子轭铁的方法包括在单侧固化工具上制备固化的复合转子轭预制件,并且对固化的转子轭预制件的至少一部分进行加工以形成转子轭。 在一个实施方案中,通过将未固化的聚合物复合材料的连续层施加到单面工具以制备未固化的转子轭预制件的构型来实现固化的复合转子轭的制备; 将半刚性盖子设置在未固化转子轭预制件的未固定侧; 通过将真空袋基本气密地密封到所述工具上来封装未固化的转子轭预制件和半刚性盖子; 基本上排空由真空袋和空气工具限定的体积; 有时在压力下加热未固化的转子轭预制件,以形成固化的复合转子轭预制件。

    Self tuning vibration absorber
    10.
    发明授权
    Self tuning vibration absorber 有权
    自调节振动吸收器

    公开(公告)号:US09296476B2

    公开(公告)日:2016-03-29

    申请号:US13450060

    申请日:2012-04-18

    IPC分类号: B64C27/00 F16F15/00 F16F7/10

    摘要: A system and method to adjustably create a reacting force in response to a vibrating force of a vibrating structure. The system includes an adjustable vibration absorber that creates a range of reacting forces. The method includes continuously monitoring the reacting force and the vibrating force with a sensor system operably associated with a control unit having an algorithm to determine if adjustment of the vibration absorber is required. If required, the control unit commands a driver to selectively adjust the vibration absorber such that the reacting force equals the vibrating force.

    摘要翻译: 一种响应于振动结构的振动力可调整地产生反作用力的系统和方法。 该系统包括可调节的振动吸收器,其产生一定范围的反作用力。 该方法包括使用与具有算法确定是否需要调节减振器的算法可操作地与控制单元可操作地相关联的传感器系统连续地监测反作用力和振动力。 如果需要,控制单元命令驾驶员选择性地调节振动吸收器,使得反作用力等于振动力。